EUVD-2026-62450
GHSA-fh25-jpw4-vg4p
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Registration API is network-accessible without authentication by design; impact is integrity-only and contained within the vulnerable phpMyFAQ system.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
phpMyFAQ versions before v4.1.6 fail to validate the security.enableRegistration setting in API endpoints, allowing attackers to create user accounts when registration is disabled. Attackers can bypass the registration restriction by submitting requests to POST /api/register or POST /api/v3.1/register endpoints, which do not check the configuration flag enforced by the HTML registration page.
AnalysisAI
Registration restriction bypass in phpMyFAQ before v4.1.6 enables network attackers to create user accounts even when administrators have explicitly disabled self-registration via the security.enableRegistration configuration flag. The REST API endpoints POST /api/register and POST /api/v3.1/register lack the server-side authorization check present in the HTML registration page, creating a security control gap (CWE-862). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation is only meaningful when an administrator has explicitly disabled user registration via the security.enableRegistration configuration flag - phpMyFAQ instances with registration intentionally open are not impacted by this bypass. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-supplied CVSS 4.0 score of 5.3 (Medium) reflects network accessibility (AV:N), low complexity (AC:L), no special attack requirements (AT:N), and low privilege (PR:L) with narrow integrity impact (VI:L) and no confidentiality or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker identifies a phpMyFAQ instance where the HTML registration page returns an error or is hidden, indicating self-registration is disabled. The attacker directly submits a POST request with valid registration fields to /api/register, bypassing the HTML-layer restriction entirely. … |
| Remediation | Upgrade phpMyFAQ to version 4.1.6 or later, which introduces server-side validation of the security.enableRegistration flag within the API route handlers. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Insufficient Session Expiration in GitHub repository thorsten/phpmyfaq prior to 3.2.2. Rated critical severity (CVSS 9.8
Authentication Bypass by Capture-replay in GitHub repository thorsten/phpmyfaq prior to 3.1.12. Rated critical severity
Weak Password Requirements in GitHub repository thorsten/phpmyfaq prior to 3.1.12. Rated critical severity (CVSS 9.8), t
Weak Password Requirements in GitHub repository thorsten/phpmyfaq prior to 3.1.8. Rated critical severity (CVSS 9.8), th
Unauthenticated SQL injection in phpMyFAQ before 4.1.2 allows remote attackers to extract credentials, admin tokens, and
In phpMyFAQ before 2.9.9, there is Cross-Site Request Forgery (CSRF) in admin/stat.ratings.php. Rated high severity (CVS
In phpMyFaq before 2.9.9, there is CSRF in admin/ajax.config.php. Rated high severity (CVSS 8.8), this vulnerability is
In phpMyFAQ before 2.9.9, there is Cross-Site Request Forgery (CSRF) for modifying a glossary. Rated high severity (CVSS
In phpMyFAQ before 2.9.9, there is Cross-Site Request Forgery (CSRF) in admin/stat.main.php. Rated high severity (CVSS 8
phpMyFAQ is an open source FAQ web application for PHP 8.1+ and MySQL, PostgreSQL and other databases. Rated high severi
phpMyFAQ is an open source FAQ web application for PHP 8.1+ and MySQL, PostgreSQL and other databases. Rated high severi
Improper Privilege Management in GitHub repository thorsten/phpmyfaq prior to 3.1.12. Rated high severity (CVSS 8.8), th
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today